JP2011177286A - Absorbent article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an absorbent article capable of reducing sideways leakage generated as the excrement reaching a swelling portion in a crotch part crosses over a free portion of a barrier sheet. <P>SOLUTION: The absorbent article has a pair of elongated and flexible swelling suppressing members 41 extending between both sides of the crotch part C2 in the lateral direction and disposed to intersect each other on the crotch part C2. The pair of swelling suppressing members 41 are fixed to side ends only on the surface on a liquid-permeable top sheet side or on the body surface side of the liquid-permeable top sheet in the free portion 68, and are configured to be stretched in the longitudinal direction when the crotch part C2 swells to a prescribed height or higher to abut to the swelling suppressing members 41. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an absorbent article, such as a disposable diaper, an absorbent pad, and a sanitary napkin, which is worn on the body so as to cover the crotch.

Absorbent articles that are worn on the body so as to cover the crotch such as disposable diapers, absorbent pads, sanitary napkins, etc., are generally structured with barrier sheets attached to both sides in the width direction on the body side surface. (For example, refer to Patent Document 1).
Here, like the absorbent pad 300 shown in FIG. 12, a general barrier sheet 24 attached to the absorbent article includes a root portion 65 fixed to the inner surface of the absorbent pad 300 and a protruding portion protruding from the root portion 65. 66, and both ends 67 and 67 in the front-rear direction of the protruding portion 66 are bonded and fixed to the surface of the liquid-permeable top sheet 22, and the middle portion is a non-fixed free portion 68. The gather elastic elastic member 24G is fixed in an extended state along the front-rear direction at least at the tip of the part 68, so that the free part 68 rises from the surface of the liquid-permeable top sheet 22 by the contracting action of the gather elastic elastic member 24G. It is supposed to be. In addition, the shaded part (dot pattern part) in FIG. 12 has shown the adhesion fixing part, and the code | symbol 23 has shown the absorber.

JP 2009-178421 A JP 2009-82439 A JP 2001-204760 A

  Generally, the width direction length of the crotch part of such an absorbent article is made somewhat wider than the wearer's crotch so that excretion can be reliably received. For this reason, when the crotch is closed, the absorbent body in the crotch part is compressed in the width direction toward the center side by pressing the width part of the crotch part at the base part of the wearer's leg and the inner part of the thigh. In some cases, the central portion in the width direction of the crotch portion is raised toward the body side. At this time, the raised portion becomes higher than the free portion of the barrier sheet described above, and excrement reaching the raised portion sometimes leaks laterally beyond the free portion of the barrier sheet.

  Then, the main subject of this invention is providing the absorbent article which can reduce the side leakage produced when the excrement which reached the protruding part of the crotch part exceeds the free part of a barrier sheet.

Means for solving the above problems and their effects are as follows. In the following description, the outer side and the outer surface side mean the opposite side to the body side.
[Invention of Claim 1]
A liquid-permeable top sheet positioned on the body side, a liquid-impervious back sheet positioned on the outer surface side, and an absorbent body interposed between the liquid-permeable top sheet and the liquid-impermeable back sheet. An absorbent article having a ventral part extending from the crotch part to the ventral side and a dorsal part extending from the crotch part to the dorsal side,
Barrier sheets extending along the front-rear direction are provided on both sides in the width direction on the body side surface of the absorbent article,
The barrier sheet includes a root portion fixed to the body side surface of the absorbent article, a protruding portion protruding from the root portion, and a body of the absorbent article provided at both ends in the front-rear direction of the protruding portion. A fixed portion with respect to the side surface, an unfixed free portion positioned between the front and rear fixed portions of the protruding portion, and a gather elastic elastic member fixed to at least a tip portion of the free portion in a state of extending in the front-rear direction. And the free part stands up from the body side surface of the absorbent article by the contraction action of the gather elastic elastic member,
Each of the crotch portions has a pair of elongate and flexible bulge restraining members that extend across both widthwise sides of the crotch portion and are arranged to cross each other on the crotch portion. The member is fixed only to the surface on the liquid-permeable top sheet side in the free part or the side end portion on the body surface side of the liquid-permeable top sheet,
When the crotch portion is raised above a predetermined height and abuts against the bulge restraining member, the bulge restraining member is configured to be in a tensile state in its longitudinal direction.
An absorbent article characterized by the above.

(Function and effect)
By providing such a flexible bulge-inhibiting member, the bulge-inhibiting member in a tensioned state can hold down the groin in the crotch when worn, and the bulge in the crotch The height of the part can be lowered. Therefore, according to the invention according to the present claim, it is possible to reduce the occurrence of lateral leakage of excrement reaching the raised portion beyond the free portion of the barrier sheet.

  Further, the uplift suppressing member is elongated and disposed over the crotch portion, so that liquid excreta diffuses on the absorbent article so as to travel along the uplift suppressing member, and the absorbent body Since it does not concentrate on a part of the body, it can be absorbed evenly, and excrement is unlikely to return.

  Furthermore, in the invention which concerns on this claim, since the cross | intersection part of a protrusion suppression member is located on a crotch part, when applying an absorbent article to a crotch, a cross | intersection part can also be used as a mark.

[Invention of Claim 2]
The absorptive article according to claim 1 in which said upheaval suppression member can elastically extend and contract in the longitudinal direction.

(Function and effect)
As in the invention according to the present claim, when the protrusion suppressing member is elastically stretchable in the longitudinal direction, even if the shape of the absorbent article is changed by the movement of the wearer, the non-fixed portion of the protrusion suppressing member is pulled. Can be kept in a state.

[Invention of Claim 3]
The absorbent article according to claim 1 or 2, wherein an absorbent material is fixed to the bulge suppressing member.

(Function and effect)
By being configured as in the invention according to the present claim, a part of the liquid excrement contacting the bulge suppressing member is absorbed by the absorbent material, so that the amount of excrement absorbed by the absorbent article is increased. be able to. Moreover, since the weight of the bulge suppressing member that has absorbed the excrement increases, it is possible to more reliably suppress the bulge of the crotch portion.

[Invention of Claim 4]
The absorbent article according to any one of claims 1 to 3, wherein a slit is formed along the front-rear direction in the absorbent body in the central portion in the width direction of the crotch portion.

(Function and effect)
When the slit is formed as in the invention according to the present claim, the excrement diffuses back and forth along the slit, so that the excrement can be absorbed by the entire absorber, and the absorber is located at the center of the crotch When the sheet is compressed in the width direction, the slit becomes narrow and the bulge by the absorber can be lowered.

[Invention of Claim 5]
The elastic member is being fixed in the state extended in the width direction between the said absorber in the said crotch part and its vicinity, and the said liquid-impermeable back seat | sheet, either of Claims 1-4. Item 1 is an absorbent article.

(Function and effect)
According to the present invention, the absorber is deformed into a wave shape by the expansion and contraction action of the elastic member, so that only a part of the absorber does not protrude and rises, and as a result, the height of the rise is reduced. Can do.

[Invention of Claim 6]
The absorbent article according to any one of claims 1 to 5, wherein the pair of bulge suppressing members are bonded to each other at the intersecting portions.

(Function and effect)
In order to more reliably press the raised portion of the crotch portion by the rise suppressing member, it is preferable that the intersecting portion of the raised suppress member is located on the crotch portion. Therefore, as in the invention according to the present invention, the pair of ridge restraining members are bonded to each other at the intersecting portion so that the pair of ridge restraining members regulate the movement of each other. Can be prevented from shifting from above the crotch.

  As described above, according to the present invention, it is possible to provide an absorbent pad that can reduce side leakage that occurs when excrement that has reached the raised portion of the crotch exceeds the free portion of the barrier sheet.

It is a top view which shows the surface side of the expansion | deployment state of an absorption pad. It is a top view which shows the back surface side of the expansion | deployment state of an absorption pad. It is YY sectional drawing of FIG. It is Z1-Z1 sectional drawing of FIG. In addition, the code | symbol A has shown a mode that a part of Z1-Z1 cross section was expanded. It is a top view which shows the surface side of the expansion | deployment state of a tape-type disposable diaper of the state which attached the absorption pad. It is a conceptual diagram which shows a mode that the width direction center part of the crotch part in the mounting state of the absorption pad protruded toward the body side. It is a top view which shows the surface side of the expansion | deployment state of an absorption pad (other embodiment). It is a top view which shows the surface side of the expansion | deployment state of an absorption pad (other embodiment). It is Z2-Z2 sectional drawing of FIG. It is a top view which shows the surface side of the expansion | deployment state of an absorption pad (other embodiment). It is sectional drawing corresponding to FIG. 4 of an absorption pad (other embodiment). It is a top view which shows the surface side of the expansion | deployment state of the conventional absorption pad.

  Hereinafter, an embodiment of an absorbent article according to the present invention will be described with reference to an example of a urine absorption pad. The absorbent article according to the present invention can also be applied to disposable diapers, sanitary napkins and the like. In the following description, the “groin portion” means a portion that corresponds to the crotch of the body at the time of use, and in most products, is a central portion in the front-rear direction and a portion in the vicinity of the front and rear. Specifically, in the case of an absorbent pad for adults, the range is ± 150 mm with respect to the center in the front-rear direction of the product. Further, “abdominal part” and “front part” mean a part in front of the crotch part, and “back part” and “rear part” mean a part behind the crotch part.

  1-4 show an example absorbent pad 200 according to the present invention. This absorbent pad 200 is assumed to be used by being laid on the inner surface of the disposable diaper 100, and has a crotch portion C2, and a front portion F2 and a rear portion B2 extending on both front and rear sides thereof. . The dimensions of each part can be determined as appropriate. For example, the total length (length in the front-rear direction) L1 is about 350 to 700 mm, and the total width W1 is about 130 to 400 mm (however, narrower than the width of the absorbent surface of the diaper). In this case, the front-rear direction length of the crotch part C2 is about 10 to 150 mm, the front-rear direction length of the ventral part F2 is about 50-350 mm, and the front-rear direction length of the back part B2 is about 50-350 mm. can do.

  The absorbent pad 200 has a basic structure in which an absorber 23 is interposed between the inner surface of the liquid-impermeable back sheet 21 and the liquid-permeable top sheet 22.

  As the absorbent body 23, it is possible to use a laminate of pulp fibers, an aggregate of filaments such as cellulose acetate, or a nonwoven fabric, and a mixture obtained by mixing and fixing a superabsorbent polymer as necessary. . If necessary, the absorber 23 can be wrapped with crepe paper (not shown). Moreover, the shape of the absorber 23 can be set to an appropriate shape such as a strip shape in which the front portion is relatively wider than the rear portion, a rectangular shape, or a trapezoidal shape.

Although the fiber basis weight and the basis weight of the absorbent polymer in the absorbent body 23 can be determined as appropriate, the fiber basis weight is preferably about 100 to 600 g / m ^2, and the basis weight of the absorbent polymer is about 0 to 400 g / m ^2. It is preferable to do this.

  On the back side of the absorber 23, a liquid-impermeable back sheet 21 is provided so as to protrude a predetermined length from the periphery of the absorber 3. As the liquid-impermeable back sheet 21, a sheet having moisture permeability can be used in addition to a polyethylene film or the like without impairing the water barrier from the viewpoint of preventing stuffiness. This water-impervious / breathable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. Can be used.

  The back side of the liquid-impermeable back sheet 21 can also be covered with the cover sheet 30. In this case, the cover sheet 30 and the liquid-impermeable back sheet 21 are fixed using an adhesive. Various nonwoven fabrics can be used as the cover sheet 30, and as the material fibers constituting the nonwoven fabric, synthetic fibers such as polyethylene or polypropylene such as olefin, polyester, amide, rayon, cupra, etc. Natural fibers such as recycled fibers and cotton can be used. The cover sheet 30 can be formed of a resin film. However, since the touch feeling of the outer surface of the absorbent pad 200 is improved when formed of a nonwoven fabric, the cover sheet 30 is preferably formed of a nonwoven fabric.

  The surface side of the absorber 23 is covered with a liquid-permeable top sheet 22. In the illustrated form, the absorbent body 23 partially protrudes from the side edge of the liquid-permeable top sheet 22, but the width of the liquid-permeable top sheet 22 is increased so that the side edge of the absorbent body 3 does not protrude. You can also. As the liquid-permeable top sheet 22, a perforated or non-porous nonwoven fabric or a perforated plastic sheet is used. As the material fiber constituting the nonwoven fabric, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and amide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.

  On both sides of the absorbent pad 200, the liquid-impermeable back sheet 21 extends outward from the side edge of the absorbent body 23, and the inner surface of the portion from the extended part to the side of the liquid-permeable top sheet 22. The barrier sheet 24 is bonded to the front and rear direction. The inner surfaces of these barrier sheets 24 have a width-direction fixed start end 24 b on the side of the liquid-permeable top sheet 22, and a portion outside the width direction from the fixed start end 24 b is a portion of the liquid-impermeable back sheet 21. The root portion 65 is bonded to the side portion.

Around the legs, the protruding portions 66 protruding from the fixing start end 24b of the barrier sheet 24 are fixed portions 67 whose both ends in the front-rear direction are bonded to the inner surface of the absorbent pad 200. Between the free portion 68 and the free portion 68 in the fixed portion 67, one or more gather elastic elastic members 24G are hot melt bonded in the stretched state along the front-rear direction. It is fixed with agents. Since the gather elastic elastic member 24G is fixed to the free part 68 in this way, the free part 68 stands up from the body side surface of the absorbent pad 200 by the contracting action of the gather elastic elastic member 24G.
Note that the gather elastic elastic member 24G does not have to be fixed to the fixed portion 67, and may be fixed to at least the distal end portion of the free portion 68.

  In addition, the bonding part (the root part 65 and the fixing part 67) in the barrier sheet 24 is shown by a dotted pattern in FIG. 1, and can be formed by hot melt adhesive, heat sealing, or ultrasonic sealing. The length of the fixed portion 67 in the front-rear direction is preferably about 70 to 100 mm, or about 1/8 to 1/6 with respect to the product length L, and the width is preferably about 15 to 30 mm.

  As the gather elastic elastic member 24G, styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicone, polyester, etc., which are formed in a thread shape, a string shape, a belt shape, etc. Commonly used materials can be used.

  As the material for the barrier sheet 24, a plastic sheet or a melt-blown nonwoven fabric can be used, but from the viewpoint of touch to the skin, a nonwoven fabric that is water-repellent treated with silicone or the like is preferably used.

  At both ends in the front-rear direction of the absorbent pad 200, the liquid-permeable top sheet 1 is extended and bonded to both the front and rear sides of the absorbent body 3 to form an end flap portion EF in which the absorbent body 23 is not present. Yes.

The absorber 23 intervening part other than the end flap part EF and the side flap part SF constitutes the main body part BD. In the illustrated embodiment, since the front end and the rear end of the absorber 23 are each linear along the width direction, the boundary BL (a crease in the present invention) between the front and rear end flap portions EF and the main body portion BD is the same. Although they are linear, they may be curved such as arcs, or may be bent such as crooked. Although the dimension of each end flap part EF can be determined suitably, since the liquid-impermeable back sheet 21, the liquid-permeable top sheet 22, and the barrier sheet 24 are reliably bonded together in the end flap part EF, at least a part Preferably protrudes 10 mm or more from the boundary BL with the main body portion BD, and the area of each end flap portion EF is preferably secured to about 2000 to 12000 mm ² .

  In the form shown in FIGS. 1 to 4, the crotch portion C2 and the vicinity of the side flap SF and the absorber 23 are narrower than the front and rear end portions, and these portions are worn by the wearer at the time of wearing. It comes in contact with the legs.

  Characteristically, as shown in FIGS. 1, 3, and 4, a pair of elongate and flexible ridge restraining members 41 are provided so as to cross each other on the crotch portion C <b> 2. . The pair of bulge-inhibiting members 41 are bonded to portions corresponding to the front and rear direction both ends of the free portion 68 at the side ends of the liquid-permeable top sheet 22, and these portions serve as fixed portions 41 </ b> X. Yes. On the other hand, portions other than the fixed portion 41X are not fixed to the liquid-permeable top sheet 22 and other members. Here, the pair of bulge suppressing members 41 are installed in a fully extended state so as not to bend in the deployed state of the absorbent pad 200 as shown in FIG. Specifically, it is preferable that the non-fixed portion of the bulge suppressing member 41 is installed by being pulled with a force of about 10 to 100 gf.

  The pair of bulge suppressing members 41 are bonded to each other at an intersecting portion 41c on the crotch portion C2. In addition, the adhesion part in the fixing | fixed part 41X and the cross | intersection part 41c of the protrusion suppression member 41 can be formed with a hot melt adhesive, a heat seal, and an ultrasonic seal. The pair of ridge restraining members 41 may not be bonded to each other at the intersecting portion 41c on the crotch portion C2, but the ridge restraining members 41 and 41 regulate the movement of each other by being bonded. It is possible to prevent the intersecting portion 41c of the member 41 from being shifted from the crotch portion C2.

The protrusion suppressing member 41 is formed in an elongated thread shape, string shape, band shape, or the like having a width direction length 41W of 15 to 30 mm, and the material may be flexible, and more preferably a water repellent material. It is preferable to form from. As the water-repellent material, for example, a plastic sheet or non-woven fabric that has been subjected to a water-repellent treatment such as silicone can be selected. When the bulge suppressing member 41 is formed of a water-repellent material, excrement is less likely to adhere to the bulge suppressing member 41, and irritation to the skin due to contact with the bulge suppressing member 41 can be reduced.
And the absorption pad 200 comprised in this way is mounted in the surface side of the liquid-permeable top sheet 2 of the diaper 100 in use, as FIG. 5 shows.

Next, the function and effect of the absorbent pad 200 according to this embodiment will be described.
In the absorbent pad 200 according to the present embodiment, the bulge suppressing member 41 is configured as described above, and as shown in FIG. 6, when the wearer closes his crotch, By pressing both sides in the width direction of the crotch portion C2 at the inner side of the thigh, the absorbent body 23 in the crotch portion C2 is compressed in the width direction toward the center side, and the center portion in the width direction of the crotch portion C2 toward the body side. When the bulge restraining member 41 is in a tensile state in the longitudinal direction when the bulge restraining member 41 is in a tensile state when the bulge is raised by a predetermined height or more and comes into contact with the bulge restraining member 41, The height of the raised portion can be reduced by suppressing the raised portion of C2. Therefore, it is possible to reduce the occurrence of side leakage of the excrement reaching the raised portion beyond the free portion 68 of the barrier sheet 24.

  In addition, since the bulge suppressing member 41 is elongated and disposed over the crotch portion C2, the liquid excrement is transmitted to the bulge suppressing member 41 on the liquid-permeable top sheet 22. , And does not concentrate on a part of the absorber 23, so that it can be absorbed evenly, and excrement does not easily return. Furthermore, in the absorbent pad 200 according to the present embodiment, since the intersecting portion of the bulge suppressing member 41 is located on the crotch portion C2, the intersecting portion can also be used as a mark when the absorbent pad 200 is applied to the crotch.

[Other Embodiments]
Next, other embodiments of the absorbent article according to the present invention will be described.
The fixed portion 41X of the bulge suppressing member 41 may be at a position other than the portion corresponding to the both ends in the front-rear direction of the free portion 68. For example, as shown in FIG. You may be located in the direction center side part. Further, the fixed portion 41 </ b> X of the protrusion suppressing member 41 may be positioned between the barrier sheet 24 and the liquid-permeable top sheet 22 in the root portion 65. Furthermore, the edge part of the protrusion suppression member 41 can be fixed to the surface of the free part 68 on the liquid-permeable top sheet 22 side, and this can be used as the fixed part 41X. In short, the fixing portion 41X of the bulge suppressing member 41 may be located on either the side end portion of the liquid-permeable top sheet 22 on the body surface side or the surface of the free portion 68 on the liquid-permeable top sheet 22 side. It ’s fine. However, the position of the fixed portion 41X is preferably determined so that the crossing angle θ at the crotch portion C2 of the pair of bulge suppressing members 41 is in the range of 20 to 40 degrees.

  The pair of bulge suppressing members 41 can also be formed from members that can be elastically stretched in the longitudinal direction. In this case, the rubber thread elastically stretchable with respect to the bump suppressing member 41 formed of a perforated or non-porous nonwoven fabric or a perforated plastic sheet is provided along the longitudinal direction of the bump suppressing member 41. It is formed by fixing with a hot melt adhesive in a stretched state, or it is formed from a stretchable elastic sheet such as a styrene elastomer-containing nonwoven fabric or a nonwoven fabric made of polyolefin-based highly crimped heat-adhesive composite fibers. Is suggested.

  In addition, when forming a pair of protrusion suppression member 41 from the member which can be elastically expanded-contracted in the longitudinal direction, the expansion | extension rate of a pair of protrusion suppression member 41 is 150-250% in the expansion | deployment state of the absorption pad 200 as shown in FIG. It is preferable to install the pair of bulge suppressing members 41 so as to be 200 to 250%. Thus, even if the shape of the absorption pad 200 is changed by the movement of the wearer, the non-fixed portion of the protrusion suppressing member 41 is formed by the protrusion suppressing member 41 being formed of a member that can be elastically stretched in the longitudinal direction. Can be held in tension.

An absorbent material can be fixed to the pair of bulge suppressing members 41 with a hot melt adhesive or the like. As the absorbent material, pulp fiber piles, aggregates of filaments such as cellulose acetate, or non-woven fabrics can be used, and a material obtained by mixing, adhering or the like with a superabsorbent polymer can be used as necessary. . Similarly to the absorber 23, the absorbent material can be wrapped with crepe paper. Since the absorbent material is fixed to the bulge restraining member 41 in this way, a part of the liquid excrement that contacts the bulge restraining member 41 is absorbed by the absorbent material. Absorption can be increased. Moreover, since the weight of the bulge suppressing member 41 that has absorbed the excrement increases, it is possible to more reliably suppress the bulge of the crotch portion C2.
In addition, it is preferable that an absorbent material adheres to the surface at the side of the liquid-permeable top sheet 22 in the protrusion suppression member 41 so that the excretion absorbed by the absorbent material may not contact skin.

  As shown in FIGS. 8 and 9, a slit 23 </ b> S can be formed along the front-rear direction in the center portion in the width direction of the absorber 23. Since the slit 23S is formed in the absorber 23, the excrement diffuses back and forth along the slit 23S, so that the excrement can be absorbed by the entire absorber 23, and the absorber 23 can be used in the crotch region. When compressed in the width direction toward the center side of C2, the slit 23S becomes narrow so that the bulge by the absorber 23 can be lowered.

  In addition, it is preferable that the slit 23S is formed within the range of the center side in the front-rear direction than the end portion in the front-rear direction of the free portion 68, more preferably, only in the vicinity of the crotch part C2, as shown in FIG. Even if the slit 23S is formed beyond the front and rear direction end of the free portion 68 beyond the center of the front and rear direction, it only compensates for the decrease in the amount of excrement absorbed due to the decrease in the volume of the absorber 23. The above merits may not be obtained.

  As shown in FIG. 10, the crotch C2 and the vicinity thereof between the absorbent body 23 and the liquid-impermeable back sheet 21 or between the cover sheet 30 and the liquid-impermeable back sheet 21 are made of thread rubber. It is also possible to fix the elastic member 51 in an extended state in the width direction. By providing the elastic member 51 in this way, the absorber 23 is deformed into a wave shape by the expansion and contraction action of the elastic member 51, so that only a part of the absorber does not protrude and rises. As a result, the height of the bumps is increased. Can be lowered. The elastic member 51 is made of styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicone, polyester, which are formed in a thread shape, string shape, belt shape, or the like. For example, a commonly used material can be used.

  As shown in FIG. 11, the side flap portion SF may be wound inside in the product state. In this case, both barrier sheets 24 and 24 are bonded to the back surface of the liquid-impermeable back sheet 21.

  In the present invention, an absorbent body is interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet, such as a disposable diaper, an absorbent pad, and a sanitary napkin, and on both sides in the width direction on the body side surface. The present invention can be applied to an absorbent article provided with a barrier sheet.

F2 ... front part (ventral part)
B2 ... Rear part (back part)
C2 ... Crotch part 21 ... Impervious back sheet 22 ... Impervious top sheet 23 ... Absorber 23S ... Slit 24 ... Barrier sheet 24G ... Gather elastic elastic member 41 ... Protrusion suppression member 51 ... Elastic member 65 ... Root part 66 ... Protruding part 67 ... Fixed part 68 ... Free part

Claims (6)

A liquid-permeable top sheet positioned on the body side, a liquid-impervious back sheet positioned on the outer surface side, and an absorbent body interposed between the liquid-permeable top sheet and the liquid-impermeable back sheet. An absorbent article having a ventral part extending from the crotch part to the ventral side and a dorsal part extending from the crotch part to the dorsal side,
Barrier sheets extending along the front-rear direction are provided on both sides in the width direction on the body side surface of the absorbent article,
The barrier sheet includes a root portion fixed to the body side surface of the absorbent article, a protruding portion protruding from the root portion, and a body of the absorbent article provided at both ends in the front-rear direction of the protruding portion. A fixed portion with respect to the side surface, an unfixed free portion positioned between the front and rear fixed portions of the protruding portion, and a gather elastic elastic member fixed to at least a tip portion of the free portion in a state of extending in the front-rear direction. And the free part stands up from the body side surface of the absorbent article by the contraction action of the gather elastic elastic member,
Each of the crotch portions has a pair of elongate and flexible bulge restraining members that extend across both widthwise sides of the crotch portion and are arranged to cross each other on the crotch portion. The member is fixed only to the surface on the liquid-permeable top sheet side in the free part or the side end portion on the body surface side of the liquid-permeable top sheet,
When the crotch portion is raised above a predetermined height and abuts against the bulge restraining member, the bulge restraining member is configured to be in a tensile state in its longitudinal direction.
An absorbent article characterized by the above.   The absorptive article according to claim 1 in which said upheaval suppression member can elastically extend and contract in the longitudinal direction.   The absorbent article according to claim 1 or 2, wherein an absorbent material is fixed to the bulge suppressing member.   The absorbent article according to any one of claims 1 to 3, wherein a slit is formed along the front-rear direction in the absorbent body in the central portion in the width direction of the crotch portion.   The elastic member is being fixed in the state extended in the width direction between the said absorber in the said crotch part and its vicinity, and the said liquid-impermeable back seat | sheet, either of Claims 1-4. Item 1 is an absorbent article.   The absorbent article according to any one of claims 1 to 5, wherein the pair of bulge suppressing members are bonded to each other at the intersecting portions.

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